Battery wifi doorbell



FIG. 1 is a front perspective view of battery WiFi doorbell showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a top pan view thereof; and,

FIG. 8 is a bottom pan view thereof.

The broken lines are for environmental proposes only and form no part of the claimed design. 

CLAIM The ornamental design for battery WiFi doorbell, as shown and described. 